Tab for index-cards.



J. E.' DULBAVY. TAB- FOB. INDEX CARDS. APPLIUATloN FILED DBO? 1a, 191g.

1,077,355@ Patented Nov. 4, 1913.

t-ionf .off t ie .'t'abfnpon' the' card' 'had :been determined bythe necessities of the particular system ordered. In consequence, in prac- WV here the tab is integral with the caidthe tice, the placing upon cards of the index Words or letters was done one card at a time,

When the position of the proposed ta'b had been determined, in view of the cards which were to precede and follow the particular card and the upper edge oit' the card was then cut away, by dies or otherwise, to leave the tab portion-With its lettering projecting above the body of the completed card.

My improved tab is made distinct and eX- trinsie from the card with which it is to be used and the cai-d can'conseqnentiy be out at the outset to its finished size and need not, as is the case With cards designed to carry an integral tab, be cut with a margin as Wide as the proposed tab is high, nearly all of which margin is Wasted when the tab is formed by the die. This is a very considerable saving of stock. Again, in making up all card inde,\r systems for different uses the index tabs di'tler in lettering, position and number, according to specific requirenie tabs cannot be printed or formed untii position of a particular tab is deteinild, whilev when the tab is extrinsic tabs muy be printedin sheets, cut and kept in stock ready for application as needed.

in carrying ontl my invention l form the index part ot' the tab, preferably, of celluinviTnD Es LAMES-F. Y, OFF NEW-TON, MASSCHUSETTS.

' a, is suitably cemented on both if @esegesiig @aspartate 1S @Quel-11i len with afbrb Vance witha'ny desired inscriptions andi be printed in sheets of died out economically.

When it is desired to make up a system to a particular order as is the common practice, .having determined Where the tabs shall be may any required size and system, a number of blank cards can be at one operation punched at the proper place along the upper edges of the cards, as indicated in Fig. l. The desired index tab is then inserted in the perforation, a, I), 0, the projecting portions 2, 3, 4 fitting respectively witliin the recess b, c, a, and vthe partl of the tab projecting above the upper edge oi the card. tab is passed over the index projecting through the slot 55 and the edges of the retainer band are folded down over the upper edge of the card, covering the The retainer, sides of tlie card Aand when this is accomplished the tab as well as the parts, 2, 3, 4.

' -Awill become. snlistantially integral With the.

card to which it is applied and Will be rethcI projections p, y), and the retainer band above the projections 44 restraining any upward inoyeinent of the index tab, the parts el., 3, in coperation with the retainer band retainer bands arede'signed to be made n- The retainer portion 5 of the part 1, the part Pfc 1 instandardf'sizes and' may be printedl'in afd-V 8 positioned upon the cards making up the projecting anchor ends 44 of the t'ab body -vitraincd Jfrom movement in any direction,

5 preventing any crosswise movement of the tab and the card itself preventing any longitudinal movement of the tab.

The use of the projection 2 as an anchor' part instead of relying solely upon the projections 44, has the advantage that, when the tab 1 which projects as a handle or lever, above the edge of the slot'ii, is handled in use, any cross strain is met by ample leverage upon the opposite side oi' what is in etl'ect a ulcrum, viz., the edge of the slot 55, and strength against such cross strains is provided by the Width of the index tab at the lulveruni point where any tendency to bend or break will be concentrated.

The index portion l, of the tab, together with its appartenant parts 2, Zal, 4, will be niade oi' Celluloid, for the reasons already set forth, but pre'feralily, the retainer 5 will be lnade of tough thin ilorous material, of the saine color as the card, so that when ad hesively applied it will support the index part of the tab and connect and anchor together all parts oi the tab and card and at the saine time will cover and conceal the anchor portions o1- the index tab. rlhe anchor portions of the index tab may be varied greatly, and serve to lnalce every part of the ii'dex card cooperate with every other part t i produce a practically unitary card.

The use oi the two dill'erent materials mentioned above tor the two parts ol the tab is in most eases to be preferred, since the celluloid index portion is almost per- Jeet for the purpose to which it is applied,

in permanence and appearance, while the covered, and when this is desired the re tainer 5 is formed substantially as shown in Fig.. 5, so that when folded on line 5a it may be applied to surrouinl and cover the upwardly prtn'eetingil portion of the tab. Vlf desired when so appliedI the retainer 'may be niade of this transparent material, thus pernlitting the index letters to be' visible.

l claim :d

1. The index card above described, recessed on its upper edge to receive the lower side of the index tab; the tab Within Said recess; and a retaining stri p to engage and connect the index tab and the card.

2. The two-part tab above described, made up ol a body part with a projecting anchor portion shaped to fit into a recess in the upper edge of an index dard and a retaining band adapted to engage and confneet the tab and card.

Signed by lne at Boston, Massachusetts,

` this fourth day of December, '1912.

Jail/UGS F. DUNLEAVY.

Witnesses Josnrn T. BRENNAN, Many A. OBlnnn. 

